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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir  · Electronic Components

SM-C-178478

Filter, Radio Frequency Interfere

Part NumberSM-C-178478
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameFILTER,RADIO FREQUENCY INTERFERE
Federal Supply Class5915 — Filters and Networks
Inclosure TypeHERMETICALLY SEALED
Overall Height1.688 INCHES NOMINAL
Maximum Voltage Drop Per Function1.2 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION
Source Impedance Rating Per Functi50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
Operating Voltage Rating And Type260.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION
Mounting Facility Type And Quantit4 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Load Impedance Per Function50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
Functional Terminal Type And Quant1 CONNECTOR, RECEPTACLE INPUT FIRST FUNCTION
Mounting Facility Screw Thread SerUNIFIED NATIONAL COARSE (UNC)
Power Line Frequency Rating Per Fu60.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Operating Current Rating Per Funct4.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Vendor Part Numbers97JX22
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RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant

Frequently asked

Is SM-C-178478 available?
We can source SM-C-178478 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is SM-C-178478 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-C-178478 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like SM-C-178478?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for SM-C-178478?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.